An Oregon heat wave is coming. Don’t jump in the riverBy Jeff Thompson (OPB)May 10, 2023 6:02 p.m.Daily high temperatures Friday through Monday could be 25 to 30 degrees above normal, but Northwest rivers are still extremely cold and moving fast.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up